diff options
| -rw-r--r-- | OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.c | 5 | ||||
| -rw-r--r-- | OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.inf | 4 | ||||
| -rw-r--r-- | OvmfPkg/OvmfPkg.dec | 4 |
3 files changed, 12 insertions, 1 deletions
diff --git a/OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.c b/OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.c index 72620ba5fd..027912e0f7 100644 --- a/OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.c +++ b/OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.c @@ -20,11 +20,12 @@ #include <Library/IoLib.h>
#include <Library/PciLib.h>
#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
//
// PIIX4 Power Management Base Address
//
-UINT32 mPmba = 0xb000;
+STATIC UINT32 mPmba;
#define PCI_BAR_IO 0x1
#define ACPI_TIMER_FREQUENCY 3579545
@@ -56,6 +57,8 @@ AcpiTimerLibConstructor ( ASSERT (mPmba & PCI_BAR_IO);
mPmba &= ~PCI_BAR_IO;
} else {
+ mPmba = PcdGet16 (PcdAcpiPmBaseAddress);
+
PciAndThenOr32 (PCI_LIB_ADDRESS (0,Device,3,0x40),
(UINT32) ~0xfc0, mPmba);
PciOr8 (PCI_LIB_ADDRESS (0,Device,3,0x04), 0x01);
diff --git a/OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.inf b/OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.inf index 4fcce6e6d5..da886680bf 100644 --- a/OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.inf +++ b/OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.inf @@ -33,6 +33,10 @@ [Packages]
MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
+
+[Pcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdAcpiPmBaseAddress
[LibraryClasses]
BaseLib
diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec index 45ba8bed1d..26600dcf42 100644 --- a/OvmfPkg/OvmfPkg.dec +++ b/OvmfPkg/OvmfPkg.dec @@ -49,6 +49,10 @@ ## This flag is used to control the destination port for PlatformDebugLibIoPort
gUefiOvmfPkgTokenSpaceGuid.PcdDebugIoPort|0x402|UINT16|4
+ ## This flag determines the Power Management Base Address of choice, written
+ # to PIIX4 function 3 offset 0x40-0x43 bits [15:6].
+ gUefiOvmfPkgTokenSpaceGuid.PcdAcpiPmBaseAddress|0xB000|UINT16|5
+
[PcdsDynamic, PcdsDynamicEx]
gUefiOvmfPkgTokenSpaceGuid.PcdEmuVariableEvent|0|UINT64|2
|